Lubricating device for compressors



Jan.1,1935. JQMCCUNE 1,986,481

LUBRICATING DEVICE FOR coMPREssoRs Filed July 25, 1930 A'r'ron EY I iBYWMM Patented` 'Jang 1, 1935 particularly to meansfor llubricatingfluidV comf- "1pressorsn i n i, v Y. l Y l H n n A1jAn1 object; ofitheinvention is to provide means for 'lubricating n a iiuid compressordriven 4vfrom l tanhinternal combustionengine-infyvhich the i ilubricant is supplied g to the compressor ironfrA the internalcombustion engine. y

falubricatingfsystem ofthe above type in which ,meansareprovidedifortregulating the pressure `oflthe `'lubricant supplied tothei compressori H Another Aobject of the invention isto provide Aanimproved lubricating system of thecharacter g mentioned, "which issimple construction, and reliable and exact in o function under 1 allcon- 4hier; airlcompressor ,f- `1ny theyaccoinpanying drawing,

i. e; TheY inveniihh also corhhrisesfher'iaihhw. aridimefhlwirhhroverhehis -fihiha @ehhh-heheh hr.-

,rangement and combinationlof-theseveralparts o engine4 sl notoperating, the spring r31j, acting ,.ofyvvhichjitlis composed, asWilLbehereinafter more fully deseribed; and claimed,Y l

, the singiefhg- `a4 -l ricating' 4system Va lu'idf 'compressorPembodying the invention.

o 7 is connected; to the `erank-L shaft l 3 ,fof` an i l ternalcombustionengine -9 by .a i suitable coupling@ l0, so `that thecompressor will fbe ,driven by i iherehgirie f whh the laiiehisoperating-1 1. -For thejpurposeowf infxthe iform oflengineioil, such 4asilhatusually ern-` ployedfor lubricating internal combustion engines,to` the working parts of fthe fair comi `pre'ssor '7; thebase `l`ot'thecompressor is prot which leads t 5o, n v with lubricant from thelubricatingsystem` of :asfy "at4 '14V vand connecting they grooves? isfapasf.-

` sagel'l which "is drilled throughthe "crankshaft uch a Wav`tointersectthegrooves 16 'in the t bearings 4 l"1'7 vof the *connectingrods "18. f

AE 'aelmi connecting `rod 1s `lillrn jdrilledf'lengthwi's`e`` so as,fto` Hrovide La `,pares/age191? foillduct 19 the" hollow Wrist 20 7 ieach i piston 21.-,.-

"The air Aompressor 'luis adapted to be supplied the internal combustionengine 9, and inthe present instance an oil pipe 22, `leading from theengine oil pump 23, is connected to the 'passage 12 of the aircompressor, by pipe 2i,

This invention relatestofenginesvand more n connecte adjacent i0 thediaphragm 12.7 Chamber connected \to V pipe 2f1bya passage 37.

,startedun theoillpump 23`foroesfthe oil through t A12;` -The oil isthen `directedbyL the passages@11,`

i balance ltozthe air compressor; from n 11a/vins i iiiii f assignervto" i oil pressurelregulatingfvalve device 245,V and ThelvalvendevicevZmay compriseja dia-y phragm v2'1 which is .mounted inv theQasihazhetween chambers28j and 29, the chamber `,28: beming .5,55

dgtowthe pipe 2 6` by a passage 39;;and chamber 29f1being opentothevatmosphere.

`On .onel side` they-"diaphragm 27 is subject i to fthe pressure-0f achit-Spring 3.1 hhrtiaihedfih n chamber/29.' The pressure ofA L the Lspring 315` is having a1 iiuted stern 35 which projects through V.anopeningf'f formed in the casing between chambers 28 and 33. lThe sternterminates 331s heh- In` 4`op eration, l the internal combustion:

i Whenith "i ternalbornbustionengineg` pipes "22 and 24Ljand passage3,7,"-to chamber 33,

of the "valvedevice25o,` past the unseatedviaflvwe` -34, todiaphragmwchamberl28yand frmthence through passageo, and pipe 26 tothepassage l5 and `1&1 toI the@ variousV working parts -of fthe Jaircompressor, `The surplus oil"co1lects in the chaliiber 38 Y the bottoni*ofl the compressor yand hows` hack tothe-011ireshrvoirftchamhhizi? i of.theiinternal `eoinbus"tio 1r.,engine "9 through PipeflO-i .When thepressure`ofrtheoilthus supplied to the diaphragm `ehainber `Zffrom:theinternal combustion engine becomes n. suleient: to over-- theopposing pressure ofVspring@3l` on diaphragm t 211,; `said diaphragm ist deflected downwardlifpermitting sprngfl to "seatithev valveSrandfprevent lfurther inoreasein presa sure ofthe oil delivered tothe]air compressor f1. Ih this hay the lubricating oil'wili he `Supplied t nheaihierhaihhihbiistion engine -95 at t "ef-l desiredf; reduced `r4`pressure helhw the Pressure-hi -sihe Oiifksiipplihii i the werkingseits-,Qi thev engine;

t While one "illustrati e embodiment `of `the 1nvention hasbeendescribed indetail, itis not my intentionto limit itsscopexjt thatembodiment or otherwise than byltheftermsofu the appended Wdescribed"-nriy,invention,` what-1 55 claim as new and desire to secureby Letters Patent, is: n 1. The combination with a machine having aplurality of passages adapted to be supplied with 5 a liquid lubricantunder pressure, of an engine for operating said machine, said enginehaving a pressure lubricating system, and meanscontrolledgbyi;thefpressure of #lubricant supplied to f. the machine..for Supplyingtheilbricaritsifrom said engine to the passages of saidmachine at reducedl pressure.

, 2. The comlamanon withfaqmacnme., having.

plurality of passages adapted't'oibe:suppliedvvith liquid lubricantunder pressureffof-fan-engineor f sure of'the `li'ibricant'supplied totheanachine for so regulating4 the pressure of the lubricantiisi'ip'plied :tol Saidimachine,that?ad'preletermined lubricant pressureis maintained in the passages .fsai'd machine.

- M3.- ffruecembinannnswaha l v ine" having'wa C r'ality" on passagesadaptelf-tobessuppliedvith V`Avlib -antiunderpressure,ianfengine'foroperating"aidc'macli'ine,#saidengehavingfa'pressur' lubricating system,means-ioresupplyingfthe i'lubricafntifromj saidfengine `tojthepassagesA:of je-saidl machine; pres'sl'refsensitive "means'g coni'ti'Heillloy*thipiessllre3"(Efj the lubricant supplied Ao themmachineioruso regulatingfithefpressure j rA etl'rnined "AlubricantV-jpressureismain-- ltain injj the Spassages of l said #machini-z; fand 'Ameanforreturning the-lubrcantfrom-ithe nia-- n V l Il 'f-'-lie-combinationevvith-fa-motonr machine vand a ljlubriejating systemincluding 'la pump f th' `motorfiorflfnrcing@the -lubri`cant ystemJ toarts vfof "the mptorif'an'd operating Vsaid machine-isaidfzengineZhavlingi aw pressure lubricating systemsmeansiiorsupplying thelubricant from said enginafto. tlierriassages),of.` ysaid machine, andymeans ciitlle'dbyithe'presl "sure"thatiisflessthan that of the lubricantsup-- :pliedbyihe pumptothe motor.

,-f8..'I'he:;combination With a motor, a machine 15 sand -a`..lubricating system including a pump driven bythe Amotor for forcingthe lubricant through Atlie'system to parts of the motor andthe-:machina of a iiuid pressure responsive pressure regulating devicein the system and #subject'-touidfzlubricant supp'liedto lthe .machine iand controlled by the pressure A of the lubricant supplied to themachine for regulating lfthe ffpressu're of 'the .lubricant suppliedLby'lthe y-pumptof-the machineto a-'substantially constant "25predetermined @value-differingfrom A the pressure VUf thelubricantvsupplied byfvsai'cl pump l'.to said motor. V *9 'I!he combinationv'ritha motor, Vam'achine "driven byfthe vmotorand alubricating system i30including 1a pump' driven bythe motor fior vvforcing"the`f'lubricantthrough-the system tor-parts ffthe m'otor'an'dl the machine,` of aIfluidpresfsu're responsive pressure regulating device in the ksysten'iarid subject "-to l uid lubricant lsupplied 35 toithe vv'machir'iebysaid pump 'and controlled'by the pressure of the lubricantLsuppliedto-"the x`r'nachineforv regulati-ngf theV pressureV of the'Tlubri- "cant supplied by the' pump to the lmachine --to a substantially"gconstant predetermined value f "dif-- ferixigffrom thefpressure Aofthe rlubricant'supplied byv said lpump-to said motor. Y Y y 0.7" Thecombination' With'amotor, vamachine and a lubricatingsyst'em' includingafpump Ydriv- "en-' bythe `r:motor for forcinglubricant `through thesystem to parts of thesmotorand the -machinef' cfa-'pressure responsivefpressure regulating-device 'Lint-the V:system subject' to -`fluidlubri- "cant supplied-tothe 'machineiby said ypumpand controlled by'th'e5pressureLof-ithe `lubricant 1sup-- "plied'lto the machineforJ-limitingthe pressure of the lubricant supplied by the pump toithelmafc'hine tola''pre'determine'd :pressure that is "less thanthaftdof thellubricant'supplied fbyf the pump --to'thermotor' 1 all. Thecombination*withasmotor,A amachine and :a 'lubricating :systemincluding-a pump Sdrivenwby/ the :motor Ifor-forcing the lubricant.through i'the @system to .partsof vthe:motor-and tliefmachine,` offa-fluidE pressure responsive pressure .reducing.,device in 'the .system`controlled 4byc-the .pressurerof `Ithe fluid lflubricant .supplied .to.themachine for Eautomatically maintaining the 3pressure'fof the,lubricant supplied by .the pump tof'thegmachine at Ya substantially"constant value regardless 'of variations-in the pressureiftlie" fluid.suppliedlbygthelpump above said constatvalue.'

v y `JOSEPH C.y M'dcUNE.l

